/*
 * Copyright (c) 2024 Huawei Device Co., Ltd.
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

import { ts, rule } from "qvog-dsl";

const SEVERITY = 2;
const DOC_PATH = 'docs/no-duplicate-class-property.md';
const DESCRIPTION = 'Declaring duplicate properties in a class can lead to unexpected behavior and member overriding. Avoid using the same property name multiple times.';

export default rule()
  .match(ts.isClassDeclaration)
  .when(node => {
      if (!node.members) return false;

      const seen = new Set<string>();
      for (const member of node.members) {
          if (ts.isPropertyDeclaration(member) && ts.isIdentifier(member.name)) {
              const propName = member.name.text;
              if (seen.has(propName)) {
                  return true; // 重复属性
              }
              seen.add(propName);
          }
      }
      return false;
  })
  .report({
      severity: SEVERITY,
      description: DESCRIPTION,
      docPath: DOC_PATH,
  });
